JP2001146379A - Footstep device of man conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform an inspection of an abrasion situation of guide shoes and adjusting work. SOLUTION: A recessed part 14c is bored in an inner wall of installing holes 14b formed in both side walls 14a of a footstep 10 connected in an endless shape, elastic plural leg parts 311 are formed in a base part 31a of the guide shoes 31 inserted into these installing holes, and claw parts 311a fitted to the recessed part are formed in these leg parts so that a lengthwise directional position becomes different. Thus, a dimension for projecting the guide shoes from both side walls of the footstep can be adjusted by changing the claw parts fitted to the recessed part according to an abrasion quantity of the guide shoes, and a desired microscopic interval can be kept between the footstep and a skirt guard panel 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger conveyor, which is known as an escalator or a moving walkway, and relates to a stepping device thereof.

[0002]

2. Description of the Related Art As an example of a man conveyor, FIG. 7 is a perspective view in which a part of an escalator is cut away.

[0003] The man conveyor travels with a number of steps 10 connected endlessly. A balustrade 11 is provided on both sides of the steps 10 in order to protect passengers on the steps 10. ing. And, on top of the balustrade 11, steps 1
A handrail 12 that moves in the same direction at the same speed as 0 is provided, and a skirt guard panel 13 is provided below the balustrade 11 on both sides of the steps 10 so as to keep a small interval. That is, the steps 10 move along the skirt guard panels 13 erected on both sides, and are positioned so as to keep a small interval between them and the skirt guard panels 13.

The details of the steps 10 are shown in FIGS. FIG. 8 is a cross-sectional view taken along the line AA of FIG. 7 and shows the rear side of the steps 10.
Is an enlarged side view of the step 10. FIG.

That is, the step 10 has a tread plate 15 at the upper part of the frame 14 and a kick-up plate 16 at the front. On both sides of the frame 14, a driving roller 17 is mounted on the back side, and a driven roller 18 is mounted on the riser plate 16 side. The step 10 is driven by a step chain (not shown) connected to a shaft 17a to which the drive roller 17 is attached, and the driven roller 18 holds the step 10 so as to move smoothly. In addition, the tread 15 and the riser 16 of the step 10
Is formed to have a width W slightly protruding from both side walls 14a of the frame 14.

Also, on both side walls 14a of the frame 14,
A guide shoe 19 made of a low friction material is attached to the skirt guard panel 13 such that its tip has a small gap Δd. Therefore,
The width between the tips of the pair of guide shoes 19 attached to the side wall 14 a of the frame 14 is set to be slightly larger than the width W of the tread plate 15 and the riser plate 16.

The guide shoe 19 is provided on both side walls 14a of the frame 14 as shown in FIG.
It is attached as shown in FIG. Here, FIG. 10 is an enlarged cross-sectional view along the line BB in FIGS. 8 and 9.

That is, in the mounting method shown in FIG. 10A, the through hole 1 formed in the side wall 14a of the frame 14 is used.
A guide shoe 19a having a T-shaped cross section is fitted into 4b, and a screw 20 is inserted into a mounting hole penetrated in the axial direction of the guide shoe 19a. It is fixed with a nut 23 via a washer 22. In this case, the guide shoe 19 on the side opposed to the skirt guard panel 13 is so arranged that the head of the screw 20 sinks into the guide shoe 19a.
A concave portion is formed at the end of “a”.

On the other hand, in the mounting method shown in FIG. 10 (b), two elastic legs 24 are formed at the base of the guide shoe main body inside the main body of the guide shoe 19b as the guide shoes 19b, and the tips of the legs 24 are formed. The guide shoe 19b is inserted into a through hole 14b formed in the side wall 14a of the frame 14, and the claw 25 is engaged with the surface on the opposite side of the side wall 14a. Thus, the guide shoe 19b is attached.

Therefore, while the step 10 is traveling, the skirt guard panel 1 erected on both sides of the guide shoe 19 is usually provided.
3, the guide shoe 19 comes into contact with the skirt guard panel 13 first when the step 10 approaches the skirt guard panel 13 side for some reason, and the end of the tread plate 15 So that the end of the riser plate 16 does not contact the skirt guard panel 13,
The movement of the steps 10 is smoothly guided.

[0011]

Although the guide shoe 19 is formed of a low friction material, the guide shoe 19 is moved by the skirt guard panel 1 while the step 10 is moving.
Because of the contact with No. 3, it cannot be denied that the end portion is physically worn.

For this reason, the end of the guide shoe 19 is worn, and as the wear progresses, the end of the tread plate 15 or the end of the riser plate 16 comes into contact with the skirt guard panel 13 and is uncomfortable. This will generate a contact sound or damage the skirt guard panel 13. Therefore, in order not to cause such inconvenience, if the guide shoe 19 is worn out due to maintenance and inspection, it is necessary to replace the guide shoe 19 with a new one. Maintenance work was burdensome for the maintenance staff. There is also a problem that it is not easy to judge whether or not the wear is required to be replaced when checking the wear amount.

The present invention has been made to solve such a problem.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problem, the invention according to claim 1 is provided between the skirt guard panels so as to move along the skirt guard panels erected on both sides. An installed step, a step having an endlessly connected step board, and a step between the step board of the step and the skirt guard panel, so as to protrude from both ends of both side walls of the step from the end thereof. In a stepping device for a man conveyor provided with a guide shoe provided, the guide shoe is attached to both side walls of the step by providing protrusion size adjusting means for adjusting the protrusion size.

[0015] This makes it possible to adjust the dimensions so that the guide shoes protrude from both side walls of the steps in accordance with the amount of wear of the guide shoes, and maintain a desired minute gap between the steps and the skirt guard panel. be able to.

The invention described in claim 2 is the first invention.
In the step device of the man conveyor described in the above, the protrusion dimension adjusting means, the recess formed in the inner wall of the mounting hole for mounting the guide shoe to the side wall of the step, the elasticity formed in the base of the guide shoe. A plurality of legs having
The leg portion is formed so as to have a different position in the length direction, and comprises a claw portion fitted into the concave portion.

Accordingly, the guide shoe can be attached only by fitting the claw formed on the leg into the recess formed in the mounting hole, and the leg has elasticity. The workability of adjusting the protrusion size is extremely good. Further, when the guide shoe is worn, if the claw portions of different legs are fitted into the recesses, the guide shoe protrudes from the side wall of the step by the pitch of the claw portion, and it is extremely easy to adjust the protrusion size. .

Further, the invention according to claim 3 provides the invention according to claim 1.
In the step device of the conveyer described in the above, the protrusion dimension adjusting means, in the inner wall of a mounting hole for mounting the guide shoe to the side wall of the step, a plurality of recesses are drilled at a plurality of locations in the width direction of the side wall, Formed at the base of the guide shoe,
And a claw fitting into the recess.

Thus, when the guide shoe is worn, the claw portion of the leg is fitted into a different recess formed in the mounting hole, and the guide shoe is moved from the side wall of the step by the pitch of the recess. As a result, it is extremely easy to adjust the protrusion size. Also, the structure of the guide shoe is simplified.

The invention described in claim 4 is the same as the claim 2.
4. The stepping device for a man conveyor according to claim 3, wherein a distance between adjacent recesses formed at a plurality of locations on an inner wall of a mounting hole of the step or a plurality of legs of the guide shoe as the protrusion dimension adjusting means. 5. The gap between adjacent claw portions formed so as to have different positions in the portion is formed to have a dimension corresponding to the wear limit dimension of the guide shoe.

[0021] With this arrangement, the interval between the adjacent claw portions and the concave portions is formed to be substantially the same as the wear limit of the guide shoe. By doing so, the minute interval between the steps and the skirt guard panel can be maintained at the initial interval.

The invention described in claim 5 is the first invention.
Wherein the protrusion dimension adjusting means adjusts a fastening position of a mounting screw of the guide shoe which penetrates a side wall of the step and is screwed to a surface on an opposite side of the side wall. It is characterized by comprising.

Thus, the guide shoe can be extended steplessly, and the gap between the step and the skirt guard panel can be appropriately adjusted according to the wear amount of the skirt guard panel. Also, the configuration of the guide shoe is simplified.

The invention described in claim 6 is the first invention.
6. The stepping device for a man conveyor according to claim 5, wherein the guide shoe is formed of a low-friction material only in a predetermined range on a side in contact with the skirt guard panel.

As a result, an expensive and unreproducible portion can be minimized.

According to a seventh aspect of the present invention, in the stepping device for a man conveyor according to any one of the first to sixth aspects, a surface of a predetermined range on a side of the guide shoe in contact with the skirt guard panel is provided. It is characterized in that markings are formed at predetermined intervals.

Thus, the wear limit can be easily known visually without measuring the dimensions, and the maintenance and inspection work can be labor-saving and more efficient.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a stepping device for a conveyor according to the present invention will be described below in detail with reference to FIGS. In these figures,
The same parts are denoted by the same reference numerals, and FIGS.
The same parts as those shown in FIG.

FIGS. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a partial sectional view showing the back side of a step 10 in a man conveyor similar to FIG. FIG. 2 is a perspective view showing an embodiment of a guide shoe 31 used in the step device of the present invention, and FIG. 3A is a guide shoe fitted to a side wall 14 a of a frame 14 of the step 10. FIG. 3B is a diagram illustrating a process of fitting the guide shoe 31 to the side wall 14 a of the frame 14.

As shown in FIG. 2, the guide shoe 31 has, for example, a columnar base 31a formed of a low friction material having a low coefficient of friction, and has, for example, four legs 311, 312 having elasticity on the base 31a. , 313, 314 (however, legs 31
4 are not shown in the figure) but extend in a direction changed by 90 degrees with respect to each other, and are located inside the circumferential surface of the base 31a. And these legs 311, 312,
The claws 313, 314 are provided with claws 311a, 312a, 313a, 314a (the claws 314a are not shown) so as to project outward. However, the positions of the claws 311a and 313a provided on the legs 311 and 313 are provided at the same length from the end of the base 31a, and the positions of the claws 312a and 314a provided on the legs 312 and 314, respectively. Is a nail 311
a, 313a are formed at positions shifted by the pitch L1 toward the distal end of the leg.

As shown in FIGS. 3A and 3B, a side wall 14a of a frame 14 constituting the step 10 is provided.
Has a through hole 14 for mounting the guide shoe 31.
b is drilled. A recess 14c is formed in the inner wall of the through hole 14b at a substantially central portion in the width direction of the side wall 14a.

Therefore, as shown in FIG.
When the legs 311, 312, 313 and 314 of the guide shoe 31 are inserted into the through holes 14b of the guide shoe 31 from the end face side, the legs 31
Because 1, 312, 313, and 314 have elasticity,
Claw 311a, 312a, 313a, 314a is through hole 1
4b, it bends inward when it hits the inner wall.
As shown in FIG. 3A, the claws 311a, 3a
13a fits into the recess 14c and the legs 311 and 313 are opened. Accordingly, the guide shoe 31 is moved to the side wall 1 of the frame 14.
4a, the position is fixed in the width direction. Note that the claws 312a and 314a of the legs 312 and 314 hit the inner wall of the through hole 14b and remain bent inward.

In this state, the pair of guide shoes 31 held on the side wall 14a of the frame 14 of the step 10 is slightly larger than the width W of the step board 15 and slightly larger than the skirt guard panel 13. It is attached so as to keep the gap Δd. Therefore, when driving the conveyor,
Even when the step 10 moves laterally due to external force or the like,
Since the base 31a of the guide shoe 31 comes into contact with the skirt guard panel 13 first and guides the steps 10, it is possible to prevent the skirt guard panel 13 from being damaged or generating abnormal noise.

However, if the operation of the man conveyor continues for a long period of time, the base 31a of the guide shoe 31 will be worn, and the steps 10 will approach the skirt guard panel 13. Therefore, when the base portion 31a is worn by a predetermined size, the legs 311 and 313 are bent inward, so that the claws 3 fitted in the concave portions 14c of the frame 14 are formed.
11a and 313a are removed from the concave portion 14c, and in this state, the leg is pushed toward the base portion 31a and the guide shoe 31 is moved to the side wall 14a.
To protrude further from In this way, the claws 312 provided on the other legs 312, 314
The guide shoes 31a and 314a are fitted into the recesses 14c of the frame 14, and the guide shoe 31 is again held on the side wall 14a of the frame 14, and the position is fixed in the width direction.

Therefore, the guide shoe 31 can be held at the same position as the initial setting position with respect to the skirt guard panel 13 again.

In order to do so, according to the present invention, the claws 311a provided on the legs 311 and 313 of the guide shoe 31,
313a and claws 312a, 3
The pitch L1 with respect to the skirt guard panel 13 of the guide shoe 31 is changed from the initial setting position of the guide shoe 31 to the tread plate 15.
Is formed to have a length substantially equal to the wear limit of the base 31a of the guide shoe 31 just before coming into contact with the skirt guard panel 13, and the pitch L1 is about several millimeters.

In the present embodiment, a description has been given of a case in which two pairs of two legs are provided with claws shifted from each other by a predetermined pitch L1, but the number of legs is increased to increase the number of legs. The nail pitch may be shifted every time.

Further, instead of providing a plurality of legs with claws shifted by a predetermined pitch, one leg is provided at a predetermined position on the legs, and a guide shoe 31 formed on the side wall 14a of the frame 14 is attached to the legs. A plurality of recesses 14c formed in the inner wall of the through hole 14b are formed at a plurality of locations in the width direction of the side wall 14a, so that the pitch of the recesses 14c is substantially equal to the wear limit of the base 31a of the guide shoe 31. You may make it. In this case, the recess 14c is
Instead of perforating the inner wall of b in a circumferential shape, a perforation that is large enough to fit a claw may be permuted in the circumferential direction.

Next, another embodiment of the guide shoe used in the present invention will be described with reference to FIG. FIG. 4 shows the same parts as in FIG.

In this embodiment, the guide shoe 32
Has a columnar base 32a formed of a low friction material having a low coefficient of friction, and a bolt 3 is provided at the base of the base 32a.
2b is embedded. And this guide shoe 3
A hole 14d through which the base 32a is slidably inserted in the width direction is formed in the side wall 14a of the frame 14 constituting the step 10 to which the step 2 is attached, and a screw hole 14e is formed in the side wall 14a serving as the bottom of the hole 14d. It is screwed.

Then, the guide shoe 32 is inserted from the opening side of the hole 14d, the bolt 32b is screwed into the screw hole 14e, and the guide shoe 32 is moved from the end of the side wall 14a of the frame 14 to the skirt guard panel 13 side. Base 32 of
Positioning is performed so that a protrudes by a predetermined dimension. That is, the end of the guide shoe 32 slightly protrudes toward the skirt guard panel 13 side from the tread plate 15 of the step 10, and the side wall 14a serving as the bottom of the hole 14d is kept so as to maintain a slight gap Δd between the skirt guard panel 13 and the skirt guard panel 13. The nut 32c is screwed onto the bolt 32b at the end of the guide shoe 32 to fix the guide shoe 32 to the side wall 14a of the frame 14. In this case, the nut 32c is preferably a double nut stopper.

In this embodiment as well, when the end face side of the base 32a of the guide shoe 32 is worn with a long-term use, if the nut 32c is loosened and the guide shoe 32 is rotated, the guide shoe 32 is sent to the bolt 32b. Base 3
2a is the skirt guard panel 1 from the end of the side wall 14a.
The guide shoe 32 can be set at the same position as the initial state by fixing with the nut 32c when the amount of protrusion reaches a predetermined size.
Therefore, even if the guide shoe 32 is worn, it can be easily adjusted back to the initial state, so that maintenance is easy and
Since the guide shoe 32 formed of an expensive low friction material can be used repeatedly, it is economically advantageous.

In the embodiment shown in FIG. 4, the entire base 32a of the guide shoe 32 is formed of a low-friction material. However, since the low-friction material is expensive, as shown in FIG. The portion 32d in which the inner bolt 32b is embedded may be formed of an inexpensive material such as a metal, and the tip of the base 32a may be made of a low-friction material, and both may be fixed with screws 32e or the like. In this way, when the low-friction material is worn, only the portion is replaced, and the guide shoe 32 can be regenerated and used.

Further, another embodiment of the guide shoe according to the present invention will be described with reference to FIG.

The guide shoe 33 of this embodiment can be implemented in addition to the guide shoes 31 and 32 of the above-described embodiments. That is, one or two or more circumferential markings 33b are provided at a predetermined interval on the base 33a (the same applies to 31a and 32a) of the guide shoe 33. In FIG. What has been done is shown. The marking 34 is provided at a length substantially equal to the wear limit from the end face of the base 33a. In addition, the marking 34 may be formed by forming a convex portion or a concave portion on the base portion 33a, or by drawing a colored line or dot on the base portion 33a.

By providing such a marking 34 on the base 33a of the guide shoe 33, the wear condition of the guide shoe 33 can be easily confirmed visually by a maintenance person during maintenance and inspection. Therefore, at an appropriate time before the steps 10 come into contact with the skirt guard panel 13, a treatment for extending the base 33 a may be performed in accordance with the progress of wear to the position of the marking 34,
The troublesome work of measuring and recording the wear state at the time of maintenance as in the related art can be omitted, and the maintenance and inspection work can be made much more efficient.

[0047]

As described above in detail, according to the first aspect of the present invention, it is possible to adjust the size of the guide shoe so as to protrude from both side walls of the step according to the amount of wear of the guide shoe. It is possible to maintain a desired minute gap between the step and the skirt guard panel.

According to the second aspect of the present invention, the guide shoe can be attached only by fitting the claw formed on the leg into the recess formed in the mounting hole. Since the portion has elasticity, workability for adjusting the protrusion dimension is extremely good.

Further, when the guide shoes are worn, if the claw portions of the different legs are fitted into the recesses, the guide shoes protrude from the side walls of the steps by the pitch of the claw portions. Adjustment of dimensions becomes extremely easy.

According to the third aspect of the present invention, when the guide shoe is worn, the claw portion of the leg is fitted into a different recess formed in the mounting hole, so that the recess of the recess is formed. Since the guide shoe protrudes from the side wall of the step by the pitch, it is extremely easy to adjust the protrusion dimension. Also, the structure of the guide shoe is simplified.

According to the fourth aspect of the present invention, since the interval between the adjacent claw portions and the concave portions is formed to be substantially the same as the wear limit of the guide shoe, the guide shoe is limited to the wear limit. By performing the work of adjusting the protruding dimension when the distance has been reached, the minute gap between the steps and the skirt guard panel can be maintained at the initial distance.

According to the fifth aspect of the present invention, the guide shoe can be extended steplessly, and the gap between the guide shoe and the skirt guard panel is appropriately adjusted according to the wear amount of the guide shoe. The configuration of the guide shoe is also simplified.

According to the sixth aspect of the present invention, an expensive and unreproducible portion can be minimized.

Further, according to the invention of claim 7,
The wear limit can be easily visually recognized without measuring the dimensions, and labor and efficiency of maintenance and inspection work can be reduced.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of the back side of a step showing an embodiment of a stepping device for a man conveyor according to the present invention.

FIG. 2 is a perspective view showing a first embodiment of a guide shoe used in the step device of the present invention.

FIG. 3 is an explanatory diagram for explaining a state where the guide shoe shown in FIG. 2 is attached to a step.

FIG. 4 is an explanatory view of another embodiment of the guide shoe.

FIG. 5 is a side view showing still another embodiment of the guide shoe.

FIG. 6 is a side view showing still another embodiment of the guide shoe.

FIG. 7 is shown for explaining an example of a man conveyor;
It is the perspective view which notched some escalators.

FIG. 8 is a sectional view taken along the line AA of FIG. 7;

FIG. 9 is a side view of a step.

FIG. 10 is an explanatory diagram for explaining a state in which a conventional guide shoe is attached to a step.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Step 13 Skirt guard panel 14 Frame 14a Side wall 14b Through hole 14c Concave part 15 Tread plate 31 Guide shoe 31a Base 311, 312, 313, 314 Leg 311a, 312a, 313a, 314a Claw

Claims (7)

[Claims] 1. A step having an endlessly connected step board, which is installed between skirt guard panels so as to move along skirt guard panels erected on both sides, and a step board of the step. A stepping device for a man conveyor comprising a guide shoe provided on both side walls of the step so as to protrude from an end thereof so as to keep a small interval between the step and the skirt guard panel; A stepping device for a man-conveyor, wherein a projecting dimension adjusting means for adjusting the projecting dimension is provided and attached to both side walls of the step. 2. The protrusion dimension adjusting means includes a concave portion formed in an inner wall of a mounting hole for mounting the guide shoe on a side wall of the step, and a plurality of elastic leg portions formed in a base portion of the guide shoe. 2. The stepping device for a man conveyor according to claim 1, further comprising a claw portion formed on the leg portion so as to have a different position in the length direction and fitted in the concave portion. 3. The projecting dimension adjusting means includes: a recess formed in an inner wall of a mounting hole for mounting the guide shoe on a side wall of the step at a plurality of locations in a width direction of the side wall; The stepping device for a man conveyor according to claim 1, comprising a formed claw portion that fits into the concave portion. 4. The protrusion dimension adjusting means is formed such that the intervals between adjacent recesses formed at a plurality of locations on the inner wall of the mounting hole of the step or the positions of the plurality of legs of the guide shoe are different. The stepping device for a man conveyor according to claim 2 or 3, wherein an interval between adjacent claw portions is formed to a size corresponding to a wear limit size of the guide shoe. 5. The projecting dimension adjusting means is configured to adjust a fastening position of a mounting screw of the guide shoe, which penetrates a side wall of the step and is screwed to a surface on an opposite side of the side wall. The stepping device of a man conveyor according to claim 1, wherein 6. The guide shoe according to claim 1, wherein only a predetermined area of the guide shoe in contact with the skirt guard panel is formed of a low friction material. A step device for a man conveyor according to claim 1. 7. The marking according to claim 1, wherein markings are formed at predetermined intervals on a surface of a predetermined area of the guide shoe on a side contacting the skirt guard panel. A step device for a man conveyor according to claim 1.